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==Crystal structure of O-succinylbenzoic acid synthetase from Staphylococcus aureus, ligand-free form== | |||
<StructureSection load='2okt' size='340' side='right'caption='[[2okt]], [[Resolution|resolution]] 1.30Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2okt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus_subsp._aureus_COL Staphylococcus aureus subsp. aureus COL]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OKT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OKT FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.3Å</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2okt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2okt OCA], [https://pdbe.org/2okt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2okt RCSB], [https://www.ebi.ac.uk/pdbsum/2okt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2okt ProSAT], [https://www.topsan.org/Proteins/NYSGXRC/2okt TOPSAN]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/MENC_STAAC MENC_STAAC] Converts 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate (SHCHC) to 2-succinylbenzoate (OSB) (PubMed:24872444). Does not show N-succinylamino acid racemase (NSAR) activity with N-succinyl-L-phenylglycine as substrate (PubMed:24872444).<ref>PMID:24872444</ref> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ok/2okt_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2okt ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The rate of protein evolution is determined by a combination of selective pressure on protein function and biophysical constraints on protein folding and structure. Determining the relative contributions of these properties is an unsolved problem in molecular evolution with broad implications for protein engineering and function prediction. As a case study, we examined the structural divergence of the rapidly evolving o-succinylbenzoate synthase (OSBS) family, which catalyzes a step in menaquinone synthesis in diverse microorganisms and plants. On average, the OSBS family is much more divergent than other protein families from the same set of species, with the most divergent family members sharing <15% sequence identity. Comparing 11 representative structures revealed that loss of quaternary structure and large deletions or insertions are associated with the family's rapid evolution. Neither of these properties has been investigated in previous studies to identify factors that affect the rate of protein evolution. Intriguingly, one subfamily retained a multimeric quaternary structure and has small insertions and deletions compared with related enzymes that catalyze diverse reactions. Many proteins in this subfamily catalyze both OSBS and N-succinylamino acid racemization (NSAR). Retention of ancestral structural characteristics in the NSAR/OSBS subfamily suggests that the rate of protein evolution is not proportional to the capacity to evolve new protein functions. Instead, structural features that are conserved among proteins with diverse functions might contribute to the evolution of new functions. | |||
Loss of quaternary structure is associated with rapid sequence divergence in the OSBS family.,Odokonyero D, Sakai A, Patskovsky Y, Malashkevich VN, Fedorov AA, Bonanno JB, Fedorov EV, Toro R, Agarwal R, Wang C, Ozerova ND, Yew WS, Sauder JM, Swaminathan S, Burley SK, Almo SC, Glasner ME Proc Natl Acad Sci U S A. 2014 May 28. pii: 201318703. PMID:24872444<ref>PMID:24872444</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2okt" style="background-color:#fffaf0;"></div> | |||
[[Category: | == References == | ||
[[Category: Staphylococcus aureus | <references/> | ||
__TOC__ | |||
[[Category: Almo | </StructureSection> | ||
[[Category: Burley | [[Category: Large Structures]] | ||
[[Category: Dickey | [[Category: Staphylococcus aureus subsp. aureus COL]] | ||
[[Category: Gerlt | [[Category: Almo SC]] | ||
[[Category: Gheyi | [[Category: Burley SK]] | ||
[[Category: Malashkevich | [[Category: Dickey M]] | ||
[[Category: Maletic | [[Category: Gerlt J]] | ||
[[Category: Gheyi T]] | |||
[[Category: Ozyurt | [[Category: Malashkevich V]] | ||
[[Category: Patskovsky | [[Category: Maletic M]] | ||
[[Category: Powell | [[Category: Ozyurt S]] | ||
[[Category: Sauder | [[Category: Patskovsky Y]] | ||
[[Category: Smith | [[Category: Powell A]] | ||
[[Category: Toro | [[Category: Sauder JM]] | ||
[[Category: Wasserman | [[Category: Smith D]] | ||
[[Category: Toro R]] | |||
[[Category: Wasserman SR]] | |||